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Unit 3, Lesson 1

Human Frequency Table

Extra Support Materials for Algebra 1

1.1

Warm-up

Estimate: Percents

What percentage of the graph is labeled B?

<p>circle divided into segments A, B, C, D. A = 25%, B = 20%, C = 5%, D = 50%.</p>

Record an estimate that is:

too low about right too high
Explain your reasoning.

1.3

Activity

Class Celebration

Han’s teacher is planning a celebration for the class. Here is a table that displays the students’ preferences for the celebration.

	prefers Monday	prefers Friday	total
prefers indoors	4	8
prefers outdoors	6	9
total

Use the table to answer the questions.

Complete the table with the missing values.
How many students were surveyed?
How many students prefer Monday?
How many students prefer Friday?
On which day should Han’s teacher plan to have the celebration?
How many students prefer to stay indoors?
How many students prefer to go outdoors?
How many students prefer Friday and prefer to stay indoors?
How many students prefer Monday and prefer to go outdoors?

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